Since the goal of a rocket is to arrive at a particular destination point at a particular moment in time, understanding the trajectory the rocket will follow is an essential aspect of rocket design. Whether you are launching a satellite into space or lighting up the night sky with fireworks, an accurate trajectory is crucial in assuring the projectile is on target. Unfortunately, making sure a rocket adheres to its calculated path can be difficult, since atmospheric conditions such as wind and rain can dramatically change the rocket’s path.